Variant Program Issues

Variant Program issue:

Facing 5 such errors in the program carried on from a variance program now to the idsx file. Unable to find the error upon double clicking the associated project check error line.

Type: Error | Code: Undefined reference | Component Type: Channel Subscriber | Component Name: Air Reel On IDC | Property: Channel

Tried manually looking out through the whole program to find where the channel subscriber is unable to look for these but have so far failed. Why isn't it showing the location upon double clicking the error line as it does with everything else in the project check dialog box.